Processing principle

Mixture of biodegradable waste and structural (liquid-absorbing) biomass is loaded in the processing room of the fermentor. Optimal fill humidity (50-60%) and disposal of air oxygen activate the metabolism of aerobic bacteria. Aeration of the fill is done by airing and turning over inside the fermentor. High level of metabolic activity and simultaneous reproducing of bacteria is demonstrated externally by rising temperature of the fill. Intensive thermofilic aerobic fermentation runs under the same conditions in the whole fill section. This accelerates composting processes. Complex organic matters are decomposed and transformed into others. Turbulent biological oxidation runs in the fermenter due to ideal conditions.

The fill temperature rises above 70ºC and proteins are gradually denatured. High fill temperatures for defined time period cause inactivation of present bacteria and pathogenic organisms (viruses, bacteria, leaven, mould, protozoons, and worms). This process is called thermofilic aerobic stabilization and hygienization of the fill. Due to high temperature the number of microorganisms is decreasing and weed seeds loose their germinating capacity. It takes 48 - 96 hours.

After the thermophilic aerobic fermentation is finished the fill is stabilized and hygienized. As its qualities have been essentially changed it is further on called fermentate. It can be used as compost for agrotechnical use or compost for energetic use (biofuel).